Answer: Typical backyard ants often create a network of

Chapter , Problem 29

(choose chapter or problem)

Typical backyard ants often create a network of chemical trails for guidance. Extending outward from the nest, a trail branches (bifurcates) repeatedly, with \(60^{\circ}\) between the branches. If a roaming ant chances upon a trail, it can tell the way to the nest at any branch point: If it is moving away from the nest, it has two choices of path requiring a small turn in its travel direction, either \(30^{\circ}\) leftward or \(30^{\circ}\) rightward. If it is moving toward the nest, it has only one such choice. Figure 3-29 shows a typical ant trail, with lettered straight sections of 2.0 cm length and symmetric bifurcation of \(60^{\circ}\). Path v is parallel to the y axis. What are the

(a) magnitude and

(b) angle (relative to the positive Figure 3-29 Problem 29. direction of the superimposed x axis) of an ant’s displacement from the nest (find it in the figure) if the ant enters the trail at point A? What are the

(c) magnitude and

(d) angle if it enters at point B?